Apparatus for use in making insoles



May 26, 1953 e. F. c. BURKE 2,639,447

APPARATUS FOR USE'IN MAKING INSOLES Filed Feb. 24, 1950 Inventor Geo/ye F6. Burke Patented May 26, 1953 UNITED]f-S'TATES. PATENT OFFICE to UnitedShoe Machinery Corporation, Flemington,'N,' .L, a corporation of New Jersey Application February 24, 1950, Serial N 0. 145,96

' '10 "cleans; (0142-17) This invention relates to apparatus for use in making insoles and particularly to apparatus for use in attaching pieces of canvas to insole-shaped matrices. I

In using machines of the type. disclosed in United States Letters Patent No. 2,494,578, granted January 17, 1950, in the name of Hans C.

Paulsen, canvas is secured to one end of an insoleshaped matrix of the kind disclosed in United States Letters Patent No. 2,577,750, granted December l1, 1951, in the names of Stanley M. Griswold and Hans C. Paulsen'. 'The matrix is provided near its rear end with a sharp point or tang on which a piece of canvas is impaled so that the canvas can beheld taut on the matrix when it'is presented to the machine. The canvas may be pressed on the tang by one'of the digits of the operators hand, usually the thumb, but in doing this constantly in the course of a' day's run it has been found that the operators thumb became badly lacerated with danger of infection.

Accordingly, it is an object of this invention to provide means'for use in attaching the canvas to the matrix by which contact of any'part of the operators hand with the tang is avoided. I

To this end the apparatus comprises a fulcrum or rest to engage the lower side of the matrix at a distance from its rear end and an abutment for engaging the canvas near the tang so that, by depression of the forepart of the matrix, the canvas will engage the abutment and'the tang be forced through it. The operator can then tension the canvas forwardly with respect to the matrix, thus preparing it for presentation to the machine. I

Preferably a U-shaped gage is provided to locate the rear end of the matrix longitudinally and laterally with respect tothe abutment so that when the forepart thereof is depressed the tang will be in proper relation to the abutment to cause the canvas to be pressed upon the tang without contact of the tang with the abutment. The abutment may be variously formed. In

one instance 'it is illustrated as a member having a hole, the portions of which" member around the hole engage the canvaswhilethe'tang enters the hole. An upwardly and outwardly inclined surface adjacent to the abutment may be provided'to steer the matrix into position beneath the abutment and against the gage.

In another instance the abutment as illustrated is in the form of, a rotatably mounted, grooved wheel, the gage insuring that the matrix will be so located'that the tang will be oppositeth e groove in .thellwheel and that the periphery of;

of the tang and press it thereon.

In the drawings,

Fig. 1 is a side elevation of the apparatus in use;

Fig. 2 is an enlarged sectional view of parts shown in Fig. 1 showing how the canvas is attached to the tang by pressing it upon the abutment;

Fig. 3 is a side elevation, partly in section, of a modified form of the apparatus; and

Fig. 4 is an enlarged perspective view of the apparatus shown in Fig. 3, taken in the direction of the arrow, in that view.

Referring to Fig. 1, a supporting shaft I0 is provided adjacent to the machine and carries a split block l2 which is clamped to the shaft by a cap screw M. The screw [4 also passes through a plate is which is adjustable about the screw while the block I2 is adjustable about the shaft Ill, both being held in place by tightening the screw I4. The plate It has a downturned end portion 18, the angle between the portions l6 and I 8 serving as a fulcrum to support a matrix M which is sole shaped. A piece of canvas 0 is placed on the matrix and its rounded rear end placed against a V-gage 20 having a pair of integral lugs 2| secured to the plate I6 by screws 22. The gage 20 locates the matrix longitudinally and laterally so that a tang T near the rear end of the matrix is beneath an abutment 24 having a vertical counterbore 26 (Fig. 2). Above the counterbore is a smaller bore threaded to receive a screw 28 by which the abutment 24 is secured to a bracket 30 held by screws 32 to the plate It.

As shown in Fig. 2, the tang is upwardly and rearwardly inclined and is struck out from a plate P which is secured by nails in the bottom of a recess in the matrix M, the recess being of a depth such that the end of the tang is substantially flush with the adjacent flat face of the matrix. The tang is thus protected from injury and requires the canvas to be depressed into the recess in order to cause it to be caught on the tan so that when the canvas is pulled toward the frontor toe end of thematrix the canvas will saidperipheral portion being small enough to;

enter the depression in the matrix in which the tang is located. Due to the inclined position of the matrix, the rear portion of the abutment presses the canvas more deeply into the recess at the rear of the rearwardly inclined tang to insure that the canvas will catch upon it and be securely held against movement toward the toe end of the matrix; a toeward pull on thecanvas serving only-to cause the tang-to penetrate farther into the canvas. The matrix is then removed and presented to the machine.

To facilitate the introduction of thematrix beneath the abutment, the abutment may have a forward projection having a downwardly andrearwardly inclined surface 36- so that if thematrix engages the surface it will be guided under the abutment.

In Figs. 3 and 4 a modified form of abutment is illustrated consisting of a yoke 38 carrying a threaded stud 40 which extends through a bracket 3| similar to the bracket 30 and is held by a nut 44. Freely journaled in the-yoke 38 is a wheel 46 having a groove 48 in its periphery. A forward extensionof the yoke 38 is bent downwardly and rearwardly to form a guiding surface 31 similar to the surface 36 on the abutment 24.

the groove 48; Thus the pressure on the canvas will be concentrated at each side of the tang to cause it to penetrate'the canvas. If, while inserting thematrix into the apparatus, the canvas engages the wheel 46, it will turn and permit easy passage of the matrix into contact with the gage 20. In the construction shown in Figs. 3 and 4 the gage-2H and the lates It and 18 are like those shown in Fig. l. the canvas .0 is guided by the surface 31 or the surface of the 'downturned portion 18 of the plate into engagement with thegage ZO-by-which it is located. laterally and longitudinally so that when the forepart .of the matrix M is depressed the" tang Twill enterth'e groove 48 of the wheel 46' and the periphery of the wheel will engage the canvas .at each side of'the tang and cause it to penetrate the canvas.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent of theUnited States is:

1. Apparatus for use in attaching canvas to an insoleshapedmatrix having a tang near its rear end comprising a fixed plate forming a fulcrum for the matrix, and a recessed abutment above and attached to the plate and arranged to engage the canvas adjacent to the tang and to cause the tang to penetrate the canvas by turning of the matrix on the fulcrum while the tang enters the recess.

2. Apparatus for use in attaching canvas-to an insole-shaped matrix having a rearwardly in-' clined tang near its rear end comprising a fixed plate forming a fulcrum for the matrix, and a hollow abutment above and secured to the plate and arranged to engagethe canvas at the rear" of the tang to-cause thetang to penetrate'the'" canvas-by turning of the matrix on the fulcrum,

the tang entering the hollow abutment.

3. Apparatus for use in attaching canvas to a tang on a matri-x'comp'rising-a plate providing a fulcrum for the matrix,and an abutment above and attached to the plate against which the can= vason thematrixis' brought by movement of the matrix about'the fulcrum, said abutment having. a surface to engage the'ca'nvas adjacent-to" The outer-portions of the periphery ofthe wheel 46 (Fig. 4) are beveled-so that their points of contact with the canvas will be near The matrix M with the tang, having a recess to receive the tang as it is forced through the canvas and having a portion with a downwardly and rearwardly inclined surface to guide the matrix beneath the abutment.

4. Apparatus for use in attaching canvas to an insole-shaped matrix having atang near its rear 'end comprising a plate having a-fulcrum for the matrix, an abutment above the plate and attached thereto, and a gage fixed to the plate for" locating the tang on the matrix with respect movement-of the matrix about'the fulcrum, said abutment having a'surface to engage "the canvas adjacentto thetangand'hav'ing a recessto're ceive-the tan'g as it is'forced'through the canvas.

'7; Apparatus for'use in attaching canvasto a matrix having. a tang comprising a horizontal plate having "a downturned end to guide thematrix' ontothe' plate, the angle in the plate providing a fulcrum for the matrix, and an abutmentoverthe'plate; the abutment having areces to receive the tang of the matrix andhaving portionsateachside" of the recess to engage the canvas to cau'seit'tdbe' penetrated by the tang as the portion of the matrix outwardly beyond the fulcrum is depressed.

81 Apparatus for use in attachingcanvas to a matrix'havinga tang comprising a horizontal plate having a down-turned end to guide the matrix ontofth'e plate, the angle in the plate providing. a" fulcrum for the matrix, and an abutmeht over "the plate, the abutment having a recess'to' receive the tangof the matrix and a portion" attherearof'the' recess to engage the canvas"'to"causeit tcfbepenetrated by the tang as thefor'epart' of the matrix is depressed.

9. Apparatu for u'se inattaching canvas to a tang on a m'atrix'comprisinga fulcrum for the matrix, and airabutment above the-fulcruminfix'ecl relation thereto against which abutment the canvasfjon the matrix is brought by. move- "-ment of the matrix about the fulcrum, said abut merit comprising a grooved wheel mounted for free rotation; thegroove receiving thetang, and

the peripheryl'of the wheel engaging the canvas at 'each'side' of'the tang and causingthe tang to penetrate the canvas when the matrix is moved about the fulcrum 10. Apparatusaccording. toclaim -9-in which there is provided adjacent to the abutment-amember having L" a downwardly and rearwardly inclinedsur'face to guide thematrix beneath the abutment as it 'is' presented to the apparatus;

GEORGE F. CLBU 1 References Cited -in the file of thispatent UNiTED STATES 5PATENTS? Number; I Y Name" 7 Date 2.2 17293 iller Nov.4,' 1941 2,351,279 Matter. Jui'i' "13,1944 

